Add barcode-detector-api-polyfill dependency and update environment variable declarations in SvelteKit project

node_modules/@zxing/browser/es2015/common/DecodeContinuouslyCallback.d.ts

@@ -0,0 +1,6 @@
+import { Exception, Result } from '@zxing/library';
+import { IScannerControls } from './IScannerControls';
+/**
+ * Callback format for continuous decode scan.
+ */
+export declare type DecodeContinuouslyCallback = (result: Result | undefined, error: Exception | undefined, controls: IScannerControls) => void;

node_modules/@zxing/browser/es2015/common/DecodeContinuouslyCallback.js

@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=DecodeContinuouslyCallback.js.map

node_modules/@zxing/browser/es2015/common/DecodeContinuouslyCallback.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"DecodeContinuouslyCallback.js","sourceRoot":"","sources":["../../../src/common/DecodeContinuouslyCallback.ts"],"names":[],"mappings":""}

node_modules/@zxing/browser/es2015/common/HTMLCanvasElementLuminanceSource.d.ts

@@ -0,0 +1,25 @@
+import { LuminanceSource } from '@zxing/library';
+export declare class HTMLCanvasElementLuminanceSource extends LuminanceSource {
+    private canvas;
+    private static DEGREE_TO_RADIANS;
+    private static makeBufferFromCanvasImageData;
+    private static toGrayscaleBuffer;
+    private buffer;
+    private tempCanvasElement?;
+    constructor(canvas: HTMLCanvasElement);
+    getRow(y: number, row: Uint8ClampedArray): Uint8ClampedArray;
+    getMatrix(): Uint8ClampedArray;
+    isCropSupported(): boolean;
+    crop(left: number, top: number, width: number, height: number): LuminanceSource;
+    /**
+     * This is always true, since the image is a gray-scale image.
+     *
+     * @return true
+     */
+    isRotateSupported(): boolean;
+    rotateCounterClockwise(): LuminanceSource;
+    rotateCounterClockwise45(): LuminanceSource;
+    invert(): LuminanceSource;
+    private getTempCanvasElement;
+    private rotate;
+}

node_modules/@zxing/browser/es2015/common/HTMLCanvasElementLuminanceSource.js

@@ -0,0 +1,132 @@
+import { IllegalArgumentException, InvertedLuminanceSource, LuminanceSource, } from '@zxing/library';
+/**/
+export class HTMLCanvasElementLuminanceSource extends LuminanceSource {
+    constructor(canvas) {
+        super(canvas.width, canvas.height);
+        this.canvas = canvas;
+        this.tempCanvasElement = null;
+        this.buffer = HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData(canvas);
+    }
+    static makeBufferFromCanvasImageData(canvas) {
+        let canvasCtx;
+        try {
+            canvasCtx = canvas.getContext('2d', { willReadFrequently: true });
+        }
+        catch (e) {
+            canvasCtx = canvas.getContext('2d');
+        }
+        if (!canvasCtx) {
+            throw new Error('Couldn\'t get canvas context.');
+        }
+        const imageData = canvasCtx.getImageData(0, 0, canvas.width, canvas.height);
+        return HTMLCanvasElementLuminanceSource.toGrayscaleBuffer(imageData.data, canvas.width, canvas.height);
+    }
+    static toGrayscaleBuffer(imageBuffer, width, height) {
+        const grayscaleBuffer = new Uint8ClampedArray(width * height);
+        for (let i = 0, j = 0, length = imageBuffer.length; i < length; i += 4, j++) {
+            let gray;
+            const alpha = imageBuffer[i + 3];
+            // The color of fully-transparent pixels is irrelevant. They are often, technically, fully-transparent
+            // black (0 alpha, and then 0 RGB). They are often used, of course as the "white" area in a
+            // barcode image. Force any such pixel to be white:
+            if (alpha === 0) {
+                gray = 0xFF;
+            }
+            else {
+                const pixelR = imageBuffer[i];
+                const pixelG = imageBuffer[i + 1];
+                const pixelB = imageBuffer[i + 2];
+                // .299R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC),
+                // (306*R) >> 10 is approximately equal to R*0.299, and so on.
+                // 0x200 >> 10 is 0.5, it implements rounding.
+                // tslint:disable-next-line:no-bitwise
+                gray = (306 * pixelR + 601 * pixelG + 117 * pixelB + 0x200) >> 10;
+            }
+            grayscaleBuffer[j] = gray;
+        }
+        return grayscaleBuffer;
+    }
+    getRow(y /*int*/, row) {
+        if (y < 0 || y >= this.getHeight()) {
+            throw new IllegalArgumentException('Requested row is outside the image: ' + y);
+        }
+        const width = this.getWidth();
+        const start = y * width;
+        if (row === null) {
+            row = this.buffer.slice(start, start + width);
+        }
+        else {
+            if (row.length < width) {
+                row = new Uint8ClampedArray(width);
+            }
+            // The underlying raster of image consists of bytes with the luminance values
+            // TODO: can avoid set/slice?
+            row.set(this.buffer.slice(start, start + width));
+        }
+        return row;
+    }
+    getMatrix() {
+        return this.buffer;
+    }
+    isCropSupported() {
+        return true;
+    }
+    crop(left /*int*/, top /*int*/, width /*int*/, height /*int*/) {
+        super.crop(left, top, width, height);
+        return this;
+    }
+    /**
+     * This is always true, since the image is a gray-scale image.
+     *
+     * @return true
+     */
+    isRotateSupported() {
+        return true;
+    }
+    rotateCounterClockwise() {
+        this.rotate(-90);
+        return this;
+    }
+    rotateCounterClockwise45() {
+        this.rotate(-45);
+        return this;
+    }
+    invert() {
+        return new InvertedLuminanceSource(this);
+    }
+    getTempCanvasElement() {
+        if (null === this.tempCanvasElement) {
+            const tempCanvasElement = this.canvas.ownerDocument.createElement('canvas');
+            tempCanvasElement.width = this.canvas.width;
+            tempCanvasElement.height = this.canvas.height;
+            this.tempCanvasElement = tempCanvasElement;
+        }
+        return this.tempCanvasElement;
+    }
+    rotate(angle) {
+        const tempCanvasElement = this.getTempCanvasElement();
+        if (!tempCanvasElement) {
+            throw new Error('Could not create a Canvas element.');
+        }
+        const angleRadians = angle * HTMLCanvasElementLuminanceSource.DEGREE_TO_RADIANS;
+        // Calculate and set new dimensions for temp canvas
+        const width = this.canvas.width;
+        const height = this.canvas.height;
+        const newWidth = Math.ceil(Math.abs(Math.cos(angleRadians)) * width + Math.abs(Math.sin(angleRadians)) * height);
+        const newHeight = Math.ceil(Math.abs(Math.sin(angleRadians)) * width + Math.abs(Math.cos(angleRadians)) * height);
+        tempCanvasElement.width = newWidth;
+        tempCanvasElement.height = newHeight;
+        const tempContext = tempCanvasElement.getContext('2d');
+        if (!tempContext) {
+            throw new Error('Could not create a Canvas Context element.');
+        }
+        // Draw at center of temp canvas to prevent clipping of image data
+        tempContext.translate(newWidth / 2, newHeight / 2);
+        tempContext.rotate(angleRadians);
+        tempContext.drawImage(this.canvas, width / -2, height / -2);
+        this.buffer = HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData(tempCanvasElement);
+        return this;
+    }
+}
+HTMLCanvasElementLuminanceSource.DEGREE_TO_RADIANS = Math.PI / 180;
+//# sourceMappingURL=HTMLCanvasElementLuminanceSource.js.map

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node_modules/@zxing/browser/es2015/common/HTMLVisualMediaElement.d.ts

@@ -0,0 +1,4 @@
+/**
+ * HTML elements that can be decoded.
+ */
+export declare type HTMLVisualMediaElement = HTMLVideoElement | HTMLImageElement;

node_modules/@zxing/browser/es2015/common/HTMLVisualMediaElement.js

@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=HTMLVisualMediaElement.js.map

node_modules/@zxing/browser/es2015/common/HTMLVisualMediaElement.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLVisualMediaElement.js","sourceRoot":"","sources":["../../../src/common/HTMLVisualMediaElement.ts"],"names":[],"mappings":""}

node_modules/@zxing/browser/es2015/common/IScannerControls.d.ts

@@ -0,0 +1,30 @@
+export interface IScannerControls {
+    /**
+     * Stops the scan process loop.
+     */
+    stop: () => void;
+    /**
+     * @experimental This is highly unstable and Torch support is not ready on browsers. Use at YOUR OWN risk.
+     */
+    switchTorch?: (onOff: boolean) => Promise<void>;
+    /**
+     * Allows to apply constraints to all tracks or filtered tracks in the stream.
+     * @experimental
+     */
+    streamVideoConstraintsApply?: (constraints: MediaTrackConstraints, trackFilter?: (track: MediaStreamTrack) => MediaStreamTrack[]) => void;
+    /**
+     * Get the desired track constraints.
+     * @experimental
+     */
+    streamVideoConstraintsGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackConstraints;
+    /**
+     * Get the desired track settings.
+     * @experimental
+     */
+    streamVideoSettingsGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackSettings;
+    /**
+     * Get the desired track capabilities.
+     * @experimental
+     */
+    streamVideoCapabilitiesGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackCapabilities;
+}

node_modules/@zxing/browser/es2015/common/IScannerControls.js

@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=IScannerControls.js.map

node_modules/@zxing/browser/es2015/common/IScannerControls.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"IScannerControls.js","sourceRoot":"","sources":["../../../src/common/IScannerControls.ts"],"names":[],"mappings":""}

node_modules/@zxing/browser/es2015/common/navigator-utils.d.ts

@@ -0,0 +1,8 @@
+/**
+ * If navigator is present.
+ */
+export declare function hasNavigator(): boolean;
+/**
+ * If enumerateDevices under navigator is supported.
+ */
+export declare function canEnumerateDevices(): boolean;

node_modules/@zxing/browser/es2015/common/navigator-utils.js

@@ -0,0 +1,19 @@
+/**
+ * If navigator is present.
+ */
+export function hasNavigator() {
+    return typeof navigator !== 'undefined';
+}
+/**
+ * If mediaDevices under navigator is supported.
+ */
+function isMediaDevicesSupported() {
+    return hasNavigator() && !!navigator.mediaDevices;
+}
+/**
+ * If enumerateDevices under navigator is supported.
+ */
+export function canEnumerateDevices() {
+    return !!(isMediaDevicesSupported() && navigator.mediaDevices.enumerateDevices);
+}
+//# sourceMappingURL=navigator-utils.js.map

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